We see the posts which were (re)tagged as "status-review" in their post history. We group them by their _current_ status-* tagging and by the re-tagger user. So we can estimate the likely outcome of a change request, from the re-tagger SE employee.
Q&A for Drupal developers and administrators
WITH Raw AS ( SELECT Id, PostId, Text AS Tags, UserId, RANK() OVER (PARTITION BY PostId ORDER BY Id) AS No FROM PostHistory WHERE PostHistoryTypeId IN (3, 6, 9) ) SELECT N.UserId AS [User Link], Tags.TagName, COUNT(*) AS Count FROM Raw C, Raw N, PostTags, Tags WHERE C.PostId = N.PostId AND C.No + 1 = N.No AND C.Tags NOT LIKE '%<status-review>%' AND N.Tags LIKE '%<status-review>%' AND C.PostId = PostTags.PostId AND PostTags.TagId = Tags.Id AND Tags.TagName LIKE 'status-%' GROUP BY N.UserId, Tags.TagName ORDER BY N.UserId, Tags.TagName;